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- Reduced mass of a mechanism 机构之等效质量
- A part of a mechanism that moves in this manner. 横移物以这种方式移动的一个机械零件
- A stop or break in the operation of a mechanism. 运作中断停止或中断机械的运行
- The fleshy, spore-bearing inner mass of a puffball. 产孢体，产孢组织马勃菌内部多肉质的产孢子的集合体
- The operating parts of a mechanism. 机械装置机械的操作部件
- Calculating the mass of a plannet. 计算一个行星的质量。
- One of a set of cogged wheels within a mechanism. 嵌齿轮在机构内的一组嵌齿轮之一
- A cold front is the forward edge of a mass of moving cold air. 冷锋就是移动的冷空气团的前锋。
- A cloud is a mass of vapor in the sky. 云是天空中的水汽团。
- Part of the energy can be transferred from one part of a mechanism to another, in a direction opposite to its main flow. That's what we call feedback. 部分能量能以与它主要传播方向相反的方向从一个机械部件传到另一个机械部件，那就是我们所称的反馈。
- The mass of a body is a measure of its energy content. 一个物体的质量就是其所含能量的度量单位。
- To set loose(a mass of ice). Used of a glacier or an iceberg. 裂开裂开（一块冰）。用于冰川或冰山。
- To convey(force or energy) from one part of a mechanism to another. 传到把（力或能量）从机械装置的一个部分传到另一个部分
- The new car had to be withdrawn from the market because of a mechanical defect. 那种新汽车因有机械缺陷只好撤出市场。
- After harvest we will have a mass of rice. 秋收后，我们将获得大量稻谷。
- A part of a mechanical or electrical complex. 零件机械或电器结构的组成部分
- A mass of igneous rock filling the vent of a volcano. 岩颈填满一座火山的一块火成岩
- Cogwheeln. One of a set of cogged wheels within a mechanism. 嵌齿轮,在机构内的一组嵌齿轮之一。
- The fire reduced the house to a mass of ash. 大火把房子烧成了灰烬。
- I found a mass of spawn in the fish before cooking. 烧鱼前，我发现鱼里有很多鱼籽。
